"French oak has a different flavor profile than American oak—it’s spicier," Boswell says. "The French oak wood is lighter, a less dense wood.

The first Bomberger's PFG (short for Precision Fine Grain) is finished in barrels made of fine-grained French oak from Tronçais, Allier, Nevers, and Vosges — the staves of which were air-dried ...